What our Clients are saying about us

Mark has done wonders with our 2 year old pup, Sansa. After just one training session, she was acting like a new dog. We could not be happier with the results, and are so very thankful we have Barkbusters to back us up if we ever need some more help!Jessica F., Fairfax, VirginiaJuly 22 2016

Mark has done an amazing job with our puppy. After his first visit, it was like she was a different dog. Some of the changes from the first visit: - no longer pulling on leash - no longer running to front door to greet guests - drastically reduced jumping on visitors - coming when called Changes since the 2 following visits: - she's mastered sit and stay - recall out doors - we can even play fetch with her off leash Overall she's the most well-behaved dog I've ever had, and it's thanks to Mark. I can't believe how far she's come - and she's only 9 months old!Rishi P., Ashburn, VirginiaApril 26 2016

We were in deep trouble. We have an aggressive 100 pound guard dog, and 2 smaller rescue dogs with all kind of issues. It took us awhile but we realized that we need professional help. Mark called and we talked in length before his very first visit, so he came prepared. He has an impressive knowledge of dog behavior!!! I believe he had a pretty good idea of what's going on in our home within an hour. He listened to us patiently and watched us interacting with our dogs. Then he taught us how to communicate with them. By the end of our first session I felt like I learned a new language that I can use with my dogs. We are at the beginning of our new life as a pack:-) but 4 weeks into it, we had no incident of aggression and although we still have a long road ahead of us, we absolutely see the end of the tunnel!
He'll come back and we'll continue on learning and practicing:-) I can't imagine that there's a better person/trainer I could recommend.Andrea D., Ashburn, VirginiaApril 1 2015

Mark came to the training prepared and Helped us with our Lab overcome fright of the stairs. Something had happened that made him not want to climb the stairs. Mark worked with us and Puck and gave us homework to continue. Within a few days, Puck was back climbing the stairs with out hesitation or fright.
We are a return customer to Mark. In the past he has helped us with a German Shepard and an English Mastiff. Like our Lab, Mark helped us with their situations and it lasted.Jackie P., Herndon, VirginiaDecember 27 2013

Mark saved our lives. We had a brand new puppy and no idea what to do or how to train him. Within one session, Mark had us working with the dog to sit and stay. He also established boundaries in our open floor plan home whereby Harry would only go in the kitchen, family room or mud room - a big help given that he was not fully housebroken. I don't know that we would have been able to keep Harry without Mark and he is how the favorite member of our family! I can't thank him enough for everything he did, recommendations on house training, food to feed him, nutritious treats, what we should expect and most importantly how to work with him in a very effective and fun manner.Wendy, ViennaSeptember 13 2007

April 14 2016

Mark Renshaw dealt with:

Mark was great. By the end of the first session we saw an incredible difference with our dog (8 year old shih tzu). She calmed down dramatically and her incessant barking was almost completely eliminated. The training methods were effective, simple, and easy to implement. We would highly recommend Mark and Bark Busters to anyone looking to see dramatic changes in their dog's behavior.

October 31 2012

Mark is a terrific instructor. He took as much time as we needed to answer questions, listen to our silly stories and ensure we mastered each exercise. Sara is much easier to manage now and we have almost eliminated her potty training issues. Rainstorms and fireworks still present a challenge in that area. Thanks so much for your service.

October 31 2012

Mark did a great job helping us with our dog Jax. He was professional, always on time, and kept in touch with us via phone/email in between sessions. Jax, a highly anxious rescue, has shown major improvements and seems much more at ease now than any time in the past 2 years that we have had him. We have recommended Bark Busters to friends based on our experience with Mark.

Mark Renshaw

written guarantee

The Bark Busters worldwide home dog training service guarantee is unique in the industry. It is designed to help owners resolve their dog's behavior and obedience problems and to provide customers with the satisfaction of ongoing support and peace of mind.